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openvswitch: Fix Frame-size larger than 1024 bytes warning.

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There is no need to declare separate key on stack,
we can just use sw_flow->key to store the key directly.

This commit fixes following warning:

net/openvswitch/datapath.c: In function ‘ovs_flow_cmd_new’:
net/openvswitch/datapath.c:1080:1: warning: the frame size of 1040 bytes
is larger than 1024 bytes [-Wframe-larger-than=]

Signed-off-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
pravin shelar 2016-09-19 13:50:59 -07:00 committed by David S. Miller
parent 204dfe1798
commit 190aa3e778
1 changed files with 9 additions and 6 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

15
net/openvswitch/datapath.c
View file

@ -928,7 +928,6 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
struct sw_flow_mask mask;
struct sk_buff *reply;
struct datapath *dp;
struct sw_flow_key key;
struct sw_flow_actions *acts;
struct sw_flow_match match;
u32 ufid_flags = ovs_nla_get_ufid_flags(a[OVS_FLOW_ATTR_UFID_FLAGS]);
@ -956,20 +955,24 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
}
/* Extract key. */
ovs_match_init(&match, &key, &mask);
ovs_match_init(&match, &new_flow->key, &mask);
error = ovs_nla_get_match(net, &match, a[OVS_FLOW_ATTR_KEY],
a[OVS_FLOW_ATTR_MASK], log);
if (error)
goto err_kfree_flow;
ovs_flow_mask_key(&new_flow->key, &key, true, &mask);
/* Extract flow identifier. */
error = ovs_nla_get_identifier(&new_flow->id, a[OVS_FLOW_ATTR_UFID],
&key, log);
&new_flow->key, log);
if (error)
goto err_kfree_flow;
/* unmasked key is needed to match when ufid is not used. */
if (ovs_identifier_is_key(&new_flow->id))
match.key = new_flow->id.unmasked_key;
ovs_flow_mask_key(&new_flow->key, &new_flow->key, true, &mask);
/* Validate actions. */
error = ovs_nla_copy_actions(net, a[OVS_FLOW_ATTR_ACTIONS],
&new_flow->key, &acts, log);
@ -996,7 +999,7 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
if (ovs_identifier_is_ufid(&new_flow->id))
flow = ovs_flow_tbl_lookup_ufid(&dp->table, &new_flow->id);
if (!flow)
flow = ovs_flow_tbl_lookup(&dp->table, &key);
flow = ovs_flow_tbl_lookup(&dp->table, &new_flow->key);
if (likely(!flow)) {
rcu_assign_pointer(new_flow->sf_acts, acts);